Octane, Fastest Legend

Haste, First strike
Octane can't be blocked except by creatures with haste.
Octane can only attack if you control one or more other creatures
All creatures on the battlefield have "when this creature attacks put a speed counter on this creature. This creature can only be blocked by creatures with equal or greater speed. At the beginning of your end step remove a speed counter from this creature if it didn't attack.".